1. Plural of matras or matrass; a type of long-necked glass vessel or flask used in chemistry and alchemy for distillation and heating.
Usage: archaic; chemistry/alchemy; also spelled 'matras' or 'matrass'

Examples

• The alchemist filled several matrasses with liquid for the distillation process.
• Medieval chemists relied on matrasses to conduct their experiments safely.
• The laboratory contained rows of glass matrasses of varying sizes.
• Heat was carefully applied to the matrasses to avoid breakage.